affinity

noun
af·​fin·​i·​ty | \ ə-ˈfi-nə-tē How to pronounce affinity (audio) \
plural affinities

Definition of affinity

 (Entry 1 of 2)

1 : relationship by marriage
2a : sympathy marked by community of interest : kinship She has an affinity to him because of their common musical interests.
b(1) : an attraction to or liking for something people with an affinity to darkness— Mark Twain pork and fennel have a natural affinity for each other— Abby Mandel
(2) : an attractive force between substances or particles that causes them to enter into and remain in chemical combination
c : a person especially of the opposite sex having a particular attraction for one
3a : likeness based on relationship or causal connection found an affinity between the teller of a tale and the craftsman— Mary McCarthy this investigation, with affinities to a case history, a psychoanalysis, a detective story— Oliver Sacks
b : a relation between biological groups involving resemblance in structural plan and indicating a common origin

affinity

adjective

Definition of affinity (Entry 2 of 2)

chemistry : of, relating to, involving, or used in affinity chromatography The unwanted antibodies are removed in affinity columns, which contain a matrix to which other antibodies have already been allowed to bind …Scientific American Although affinity labeling was originally developed for the investigation of enzymes, it has also added significantly to the study of the structure of active sites in other systems …— Meir Wilchek et al.

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Choose the Right Synonym for affinity

Noun

attraction, affinity, sympathy mean the relationship existing between things or persons that are naturally or involuntarily drawn together. attraction implies the possession by one thing of a quality that pulls another to it. felt an attraction to danger affinity implies a susceptibility or predisposition on the part of the one drawn. an affinity for mathematics sympathy implies a reciprocal or natural relation between two things that are both susceptible to the same influence. two minds in sympathy

Examples of affinity in a Sentence

Noun

Jefferson's personal debts continued to mount … His addiction to French wine, like his affinity for French ideas, never came to grips with the more mundane realities. — Joseph J. Ellis, American Heritage, May/June 1993 … neither virus has an affinity for T cells. — Robert C. Gallo, Scientific American, 1987 Animals sharing this basic architecture may have no closer affinity than a beetle and a squid. — Stephen Jay Gould, Natural History, 1985 There's always been an affinity between us. He never felt any affinity with the other kids in his neighborhood.
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Recent Examples on the Web: Noun

Like his sister, Chris Edwards Jr. had an affinity for media and worked as a digital content manager for the City of Atlanta. Hanna Krueger, BostonGlobe.com, "Slain BU student Erin Edwards remembered for her commitment to social justice, journalism, and music," 23 Aug. 2019 Anne Milou has always had an affinity for oversized T-shirts, scrunchies and Puka shell necklaces. Kalhan Rosenblatt, NBC News, "Scrunchies and saving the turtles: 'VSCO girls' are the newest teen lifestyle trend," 15 Aug. 2019 The slain officer had an affinity for dirt bikes and traveling, according to his social media accounts. Los Angeles Times, "Riverside shooting suspect had a long criminal history, records show," 13 Aug. 2019 McGinnis explains that ethanol's carbons have an affinity for the inside of the carbon nanotubes. Robert F. Service, Science | AAAS, "This former playwright aims to turn solar and wind power into gasoline," 3 July 2019 By now, everyone knows that Swift has an affinity for the number 13. Tomás Mier, PEOPLE.com, "From an Ellen DeGeneres Tattoo to a Potential Hayley Kiyoko Collab: All the Easter Eggs in Taylor Swift's New Music Video," 17 June 2019 The new leader of Britain’s House of Commons, known for his orate rhetoric and affinity for tradition, has issued a painstaking list of grammar and etiquette for his staff. Fox News, "UK lawmaker issues etiquette, writing guidelines that ban words including 'hopefully,' 'very'," 28 July 2019 For most conservatives, an affinity for limited government is derived not from a dogmatic libertarian opposition to the exercise of government power, but rather from a deep respect for civil society. Nate Hochman, National Review, "A Big-Government Nationalism, or a Burkean One?," 25 July 2019 But Laureano’s magic seems to stem from his guts to use his pure athleticism, affinity for improvisation, and speed to go a bit off-script. Shayna Rubin, The Mercury News, "A closer look at Ramon Laureano’s extraordinary July," 20 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'affinity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of affinity

Noun

14th century, in the meaning defined at sense 1

Adjective

1962, in the meaning defined above

History and Etymology for affinity

Noun

Middle English affinite, borrowed from Anglo-French & Latin; Anglo-French affinité, borrowed from Latin affīnitāt-, affīnitās, from affīnis "bordering (on), related by marriage, connected (with)" (from ad- ad- + fīnis "boundary, limit") + -itāt-, -itās -ity — more at final entry 1

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More Definitions for affinity

affinity

noun

English Language Learners Definition of affinity

formal
: a feeling of closeness and understanding that someone has for another person because of their similar qualities, ideas, or interests
: a liking for or an attraction to something
: a quality that makes people or things suited to each other

affinity

noun
af·​fin·​i·​ty | \ ə-ˈfi-nə-tē How to pronounce affinity (audio) \
plural affinities